2² × 7 × 43 × 179

Prime Factor Structure

Factorization String 2^2 × 7 × 43 × 179

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 443,520

Proper Divisor Sum 228,004

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #215507 ← → #215521

1 2 4 7 14 28 43 86 172 179 301 358 602 716 1,204 1,253 2,506 5,012 7,697 15,394 30,788 53,879 107,758 215,516

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

215,516 107,758 53,879 161,638 80,819 242,458 121,229 363,688 181,844 90,922 45,461 136,384 68,192 34,096 17,048 8,524 4,262 2,131 6,394 3,197 9,592 4,796 2,398 1,199 3,598 1,799 5,398 2,699 8,098 4,049 12,148 6,074 3,037 9,112 4,556 2,278 1,139 3,418 1,709 5,128 2,564 1,282 641 1,924 962 481 1,444 722 361 1,084 542 271 814 407 1,222 611 1,834 917 2,752 1,376

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